US2244512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of aliphatic-aromatic
Assignee: —
•
Filing: 1939-03-04
•
Granted: 1941-06-03
•
Expires: 1959-03-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:15
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/32; C07C303/02; C07C303/04; C07C303/06; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/22; G; G01; G01N; G01N13/00; G01N33/00; G01N33/36; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-06-02 | 1944-12-02 | 1945-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-06-02 | 1948-12-02 | 1949-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-06-02 | 1952-12-02 | 1953-06-03 | $7700.00 | Window Closed / Lapsed |